buildTree method
Builds the tree of widgets below this one. This is not usually to be overridden by subclasses.
Implementation
WidgetNode buildTree(final OutputContext context) {
final child = build(context);
if (child != this) {
final childNode = child.buildTree(context);
return WidgetNode(widget: this, children: [childNode]);
}
return WidgetNode(widget: this, children: []);
}